Implement foveated ISR pipeline scaffolding and ExampleUE integration#1

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Copilot wants to merge 10 commits intomasterfrom

copilot/create-integration-specification

Commits on Jan 8, 2026

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docs: add foveated isr design spec

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feat: implement foveated pipeline scaffolding

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chore: address review feedback

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chore: sanitize frame index wraparound

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fix: include imgui for ExampleUE entry

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chore: tidy reviewer nits

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chore: add safety checks and lambda annotations

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chore: normalize sdk header naming

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fix: move ue frame counter to begin frame

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